Controls; Functions; Evacuating The Air: The Vacuum Function - Orved Bright Serie Manual De Uso

5.1 CONTROlS

The machines can be equipped with three different digital controls, all driven by state-of-the-art micro-processors, which
allow multiple functions and programming options.
There is also the possibility of activating or deactivating the buzzer signal that accompanies the visual messages.
The options are:
• Digital. They have a dual 12-digit display and additional signals via bright icons. There are: 20 programs that can be set,
a series of pre-set programs specific for products, programs for deaeration, programs for preservation and a program
for the dehumidification of the pump oil.

5.2 FUNCTIONS

5.2.1 EVACUATING ThE AIR: ThE VACUUM FUNCTION

This is the basic parameter with which the absence of air to be achieved in the package is measured.
The maximum final vacuum created inside the chamber varies from about 0.5 millibars to 2 millibars in optimal conditions,
but it is highly affected by the quality and type of product to be packed (humidity, temperature, air trapped in the fibres),
the maintenance level of the pump, gaskets, etc.
Since in most cases the aim is to achieve the maximum vacuum possible, it is good practice to add an additional vacuum
time of about 10 seconds once the machine indicates the maximum vacuum has been created.
In order to reduce the packaging time, the maximum number of panels should be placed inside the vacuum chamber, in line
with the package volume. Thereby, reducing the air volume to be drawn and also the time required to perform the cycle.
• Working with the maximum output: adjusting the vacuum with the sensor. The vacuum machines is measured by
a pressure transducer. This allows the optimal output to be achieved (maximum vacuum in the shortest possible time),
regardless of the air volume to be drawn and the atmospheric pressure. The measurement is expressed as a percentage
and the maximum value that can be set is 99%. Even in this case it is appropriate to set an additional vacuum value so
as to guarantee an optimal vacuum level.
• Improving air extraction: the additional vacuum function. The function is set in seconds. As an indication, 5 to 10
seconds are set.
Rev. 05 - 04/2018 - Cod. 1500458 - Instruction manual for vacuum chamber packaging machines with digital control panel "Serie Bright"
DESCRIPTION OF ThE MAChINE AND ITS FUNCTIONS
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